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doc-src/Tutorial/ToyList/lemma1
author
wenzelm
Thu, 07 Sep 2000 20:53:02 +0200
changeset 9896
1319676eb2db
parent 5377
efb799c5ed3c
permissions
-rw-r--r--
chop_nonempty: accomodate new qed_spec_mp;
Goal "rev(xs @ ys) = (rev ys) @ (rev xs)";